79995001 has 2 divisors, whose sum is σ = 79995002. Its totient is φ = 79995000.

The previous prime is 79994969. The next prime is 79995023. The reversal of 79995001 is 10059997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73359225 + 6635776 = 8565^2 + 2576^2 .

It is an emirp because it is prime and its reverse (10059997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79995001 - 2⁵ = 79994969 is a prime.

It is not a weakly prime, because it can be changed into another prime (79995031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39997500 + 39997501.

It is an arithmetic number, because the mean of its divisors is an integer number (39997501).

Almost surely, 2^79995001 is an apocalyptic number.

It is an amenable number.

79995001 is a deficient number, since it is larger than the sum of its proper divisors (1).

79995001 is an equidigital number, since it uses as much as digits as its factorization.

79995001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 79995001 is about 8943.9924530380. The cubic root of 79995001 is about 430.8779628036.

The spelling of 79995001 in words is "seventy-nine million, nine hundred ninety-five thousand, one".